The R-8471 Stainless Steel Retractable Bollard retracts fully below ground—closing flush to avoid obstruction and tripping hazards. A single key-locking mechanism ensures quick and easy access to restricted areas. Its clean and versatile design is highly visible and available with alternative mountings (see removable and fixed models) for consistent aesthetics that suit any modern building or landscape. High-quality 316 grade stainless steel with #6 satin finish features high resistance to corrosion and weathering. Posts ship standard with 1 of 4 colored reflector stripes. R-8471 bollards can be locked only in the extended, upright position.